1、查看防火墙状态
systemctl status firewalld.service
active（running）表示防火墙已打开
2、关闭防火墙
systemctl stop firewalld.service
3、再次查看防火墙状态，确认已关闭
systemctl status firewalld.service
4、永久关闭防火墙，不执行禁用将在重启后防火墙自动开启
systemctl disable firewalld.service标签：service,firewalld,防火墙,CentOS7,systemctl,关闭,Linux From： https://www.cnblogs.com/ChenRihe/p/17706284.html